CVE-2019-14993
Istio before 1.1.13 and 1.2.x before 1.2.4 mishandles regular expressions for long URIs, leading to a denial of service during use of the JWT, VirtualService, HTTPAPISpecBinding, or QuotaSpecBinding API.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Istio before 1.1.13 and 1.2.x before 1.2.4 mishandles regular expressions for long URIs, leading to a denial of service during use of the JWT, VirtualService, HTTPAPISpecBinding, or QuotaSpecBinding API.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.29% probability · 83th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-185
- Affected
- istio/istio
- Source
- cve@mitre.org
EPSS 2.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://discuss.istio.io/t/upcoming-security-updates-in-istio-1-2-4-and-1-1-13/3383Vendor Advisory
- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86164Exploit, Issue Tracking, Third Party Advisory
- https://github.com/envoyproxy/envoy/issues/7728Exploit, Issue Tracking, Third Party Advisory
- https://istio.io/blog/2019/istio-security-003-004/Vendor Advisory
- https://discuss.istio.io/t/upcoming-security-updates-in-istio-1-2-4-and-1-1-13/3383Vendor Advisory
- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86164Exploit, Issue Tracking, Third Party Advisory
- https://github.com/envoyproxy/envoy/issues/7728Exploit, Issue Tracking, Third Party Advisory
- https://istio.io/blog/2019/istio-security-003-004/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.